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CVE-2023-28488· NVD / CVE Program· CNA mitre

client.c in gdhcp in ConnMan through 1.41 could be used by network-adjacent attackers (operating a crafted DHCP server) to cause a stack-bas

client.c in gdhcp in ConnMan through 1.41 could be used by network-adjacent attackers (operating a crafted DHCP server) to cause a stack-based buffer overflow and denial of service, terminating the connman process.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Apr 12, 2023
Updated
Jun 17, 2026
EPSS
1.0% · 60th percentile
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Report tools

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Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.0%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Affected systems

VendorProduct
intelconnman

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • intel connman0.55 and later · up to 1.41 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:10connmanbefore 1.36-2.1~deb10u51.36-2.1~deb10u5
Debian:11connmanbefore 1.36-2.2+deb11u21.36-2.2+deb11u2
Debian:12connmanbefore 1.41-31.41-3
openSUSE:Tumbleweedconnmanbefore 1.42-1.11.42-1.1
SUSE:Package Hub 15 SP4connmanbefore 1.42-bp154.2.6.11.42-bp154.2.6.1
SUSE:Package Hub 15 SP4connmanbefore 1.42-bp154.2.6.11.42-bp154.2.6.1
SUSE:Package Hub 15 SP5connmanbefore 1.42-bp155.4.3.11.42-bp155.4.3.1
SUSE:Package Hub 15 SP5connmanbefore 1.42-bp155.4.3.11.42-bp155.4.3.1

Same product

intel: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-12865Stack-based buffer overflow in "dnsproxy.c" in connman 1.34 and earlier allows remote attackers to cause a denial of service (crash) or exec
    41Plan
  • CVE-2022-32292In ConnMan through 1.41, remote attackers able to send HTTP requests to the gweb component are able to exploit a heap-based buffer overflow
    40Plan
  • CVE-2022-23097An issue was discovered in the DNS proxy in Connman through 1.40.
    37Monitor
  • CVE-2022-23096An issue was discovered in the DNS proxy in Connman through 1.40.
    37Monitor
  • CVE-2021-26675A stack-based buffer overflow in dnsproxy in ConnMan before 1.39 could be used by network adjacent attackers to execute code.
    35Monitor
  • CVE-2022-32293In ConnMan through 1.41, a man-in-the-middle attack against a WISPR HTTP query could be used to trigger a use-after-free in WISPR handling,
    33Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:connman1.41-3 · Debian:12Package registry (OSV)
opensuse:connman1.42-bp155.4.3.1 · openSUSE:Leap 15.5Package registry (OSV)
suse:connman1.42-bp155.4.3.1 · SUSE:Package Hub 15 SP5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records